Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 610 [Rate centres in NPA 610] [Dial plan for NPA 610]

NXX: 257

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
610-257 A Philadelphia Suburban Zone 23 PA KGPRPADODS0  7434 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA 228      
610-257 0 Philadelphia Suburban Zone 23 PA   3806 CORE COMMUNICATIONS, INC. - PA 228   2019-04-17   
610-257 1 Philadelphia Suburban Zone 23 PA   3806 CORE COMMUNICATIONS, INC. - PA 228   2019-04-17   
610-257 3 Philadelphia Suburban Zone 23 PA KGPRPADODS0  7434 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA 228      
610-257 4 Philadelphia Suburban Zone 23 PA   3806 CORE COMMUNICATIONS, INC. - PA 228   2019-03-27   
610-257 5 Philadelphia Suburban Zone 23 PA KGPRPADODS0  7434 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA 228      
610-257 6 Philadelphia Suburban Zone 23 PA   3806 CORE COMMUNICATIONS, INC. - PA 228   2019-04-17   
610-257 7 Philadelphia Suburban Zone 23 PA PHLAPAMK20Z  002F BANDWIDTH.COM CLEC, LLC - PA 228   2013-03-04   
610-257 8 Philadelphia Suburban Zone 23 PA   3806 CORE COMMUNICATIONS, INC. - PA 228   2019-04-17   
610-257 9 Philadelphia Suburban Zone 23 PA KGPRPADODS0  7434 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA 228      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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